Grinding and polishing machine



Jan. 19 1926. 1,569,940

T. P. ANTHONY GRINDING AND POLISHING MACHINE Filed Jan. 5, 1924- 3Sheets-Sheet 1 Jan. 19,1926. 1 Y 1,569,940

T. P. ANTHONY v GRINDING AND POLISHING MACHINE Filed Jan. 5. 1924 3Sheets-Sheet 2 Jan. 19, 1926. 1,569,940

' T. P. ANTHONY GRINDING AND POLISHING MACHINE Filed Jan. 5. 1924 3Shets-Sheet 5 Patented Jan; 19, 19 26.

UNITED; STATES PATENT OFFICE.

THOMAS P. ANTHONY, OF EDGEWATER PARK, NEW JERSEY,

\ STATES CAST IRON PIPE & FOUNDRY COMPANY, OF BURLINGTON,

CORPORATION 'OF. NEW JERSEY.

NEW JERSEY, A.

' enrivnme AND I'OLISHING MACHINE.

Application filed January 3, 1924. Serial No. 684,114.

To all whom it may concern:

Be it known that I, THOMAS P. Ari'rHoNY, a citizen of the United Statesof America, and resident of Edgewater Park, county of Burlington, Stateof New Jersey, have invented a certain new and useful Improvement inGrinding and Polishing Machines, of which the following is a true andexact description, reference being had'to the ac companying drawings,which form a part thereof.

My invention relates to grinding and polishing machinery and has for itsobject to provide a machine especially desi ed and adapte for thegrindin and polis ing of spherical pipe sockets suc as are used incoupling pipes together with freedom for angular adjustment with respectto each other.

The nature of my improvements will be best understood as described inconnection with the drawingsin which they are illustrated" and inwhieh-'- Figural is a plan view of my im roved machinewith a sphericallysockets pipe shown in place thereon and partly in section.

Figure 2 is 'a front elevation of-mymachine .also showing the pipepartly .in section. v

Figure 3 is an end elevation of my machine taken from the right handside of Figs. 1 and 2, but with a motor for driving the polishing wheelomitted.

- Figure 1 is a sectional 'ew on the'line Figure 5, a plan view of theplate J which in the construction illustrated separates the motor andpolishing machine.

A, A, are grooved su porting wheels on 40 which rests the socket on ofthe ipe. B, B, are supporting wheels on which t e rear end of thepiperests. A and A are the shafts which support the wheels A, A, and towhich are secured the sprocket wheelsA and A connected by the chain A. Ais a worm whe '1 secured to the shaftA and engaged by b e worm A driven*by the pulley A which in turn is driven by the belt A passing over thepulley A driven by the motor A. C is the pipe havinga spherical socketindicated at C. D is the base frame of the machine which supports theshafts of the L, on t grooved wheels upwardly extending standard D fromwhich extend a pivot pin E and another upwardly extending standardindicated at D into the top of which screws the bolt indicated at E. Fis the main frame of the machine which is pivotally supported on the pinE of the standard D and the opposite end of which rests, when the mainframe is in operative position, on the standard D which is formed with aslot F to give passageto the clamping bolt E. This main frame is formedwith an offset boss F and provided with a pivot pin H so located that iwhen the frame is in operative position the pivot pin will coincideapproximatel with a diametric line of the socket C an pref- 'erably, asshown, with a vertical'diametric line. The frame F is also formed with aforward extension F and has secured to it a segmental rack, indicated atF. G is'a second frame pivotally supported on the pivotH and frame F, asindicated at G, and formed with a rib G which rests upon the frame F.This frame supports a ivot pin indicated at G and the second pinindicated at G, the function of which will be described. J is a platesupported on the frame G preferably by ball bearings, as indicated at J,and pivoted on' the said frame G by the pivot pin Gr passing through thepivot hole J, indicated in Fig. 5. Jf-is a larger hole through whichpasses the pulley or pin G, the hole J 3 being of such diameter as toper,- mit of necessary angular movement of plate on the pivot G. I is ashaft secured on the underside of the frame Gr carrying a by the handwheel lever arm extending indicated at 1 J is a assrenon 'ro um'rnn A,A, and is formed with an the 'Worm I which is engaged in the segmentalout from the outer end of the plate J and to 1 which is attached a cordK passing over a pulley K and carrying a weight indicated at K L is amotor carried on the outer end of the, late J having a shaft indicatedat e end of which is attached a polishing wheel indicated at L I In thespecial and preferred form of construction illustrated in the drawingsthe pipe is supported and rotated by the supporting mechanism describedand the frame F is securely clamped in operative position by means ofthe pulley E and in this position the pivot pin H carried by this framelies approximately in a vertical diametric line of the socket C. Thepolishing wheel L is held in contact with the vertical socket by theaction of the weight K which tends to swing the plate J in a directionto press the polishing wheel against the work. By means of the segmentalrack F and worm I the frame G is angularly adjusted on the pivot pin Hsoas to carry the polishing wheel over the surface of the vertical socketG and when the socket has been completely polished the clamping bolt Fis loosened and the frame F rotated outward on its pivot E so as toremove the polishing Wheel, and'all parts of its supportin and actuatingmechanism, from the mout of the pipe and permit its free removal.

Having now described my invention, what I claim as new and desire tosecure by Letters Patent, is:

1. A grinding and polishing machine having in combination means forsupporting and rotating a pipe having a spherical socket at its end, amain frame carrying a pivot located to lie normally in an approximatediametric line of the spherical pipe socket,

when a pipe is in position to be ground, a second frame pivoted on themain frame pivot, means for angularly adjusting said second frame, apolishing wheel supported on said second frame in position to contactwith the spherical pipe socket and means for pipe socket.

2. A grinding and polishing machine having in combination means forsupporting and rotating a pipe having a spherical socket at its end, amain supportin frame pivoted at a point lying beyond tie pipe end whenthe pipe is in position to be ground and carrying a pivot located so asto lie in the vertical diameter of the spherical pipe socket when theframe is in operative position, a second frame pivotally supported onthe main frame, means for angularly adjusting the second frame on themain frame, a plate pivotally supported on the second frame, a polishingwheel and means for rotating it supported on said pivoted plate andmeans acting on said pivoted plate to press the polishing wheel againstthe socket of the pipe.

THOMAS P. ANTHONY.

pressing said polishing wheel against the-

